Concept explainers
To answer:
Explain why both dinoflagellates and Euglenids were originally classified as protozoa by zoologist as algae and by botanists.
Introduction:
Dinoflagellates are eukaryotic protists with flagellum for their movement. These organisms are planktons in which most of them are marine, but also common in fresh water. They are also called as sea sparkle. Henry Baker has described them as animalcules causing sparkles in seawater due to their luminescence nature. Dinoflagellate are categorised then under flagellate and under algal division Pyrrophyta respectively. Euglenids are flagellates, endosymbiont freshwater eukaryotes. Euglenids have organelles like chloroplast which helps in photosynthesis process. Euglenids are categorised under flagellate order Euglenids and an algal division Euglenophyta as protozoa and algae respectively.
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EBK MICROBIOLOGY:W/DISEASES BY BODY...-
- Clapter 4. Define and identify properties of biofilms Familiarize yourself with the following structures and what purpose(s) they se o Glycocalyx (both slime layer and capsule) Fimbriae o Flagella, distinguish the different flagella arrangements axial filament sex pili cell wall plasma membrane inclusions ribosomes plasmids nucleoid chromosome o endospores What characteristics distinguish the Domain Archaea and Domain Bacteria? Regarding cellwall hp O o 0 O O 0 0 oarrow_forwardDescribe the protozoan characteristics that illustrate why protozoa are informally placed into a single group.arrow_forwardDinoflagellates are unicellular, marine protists. Dinoflagellates are bioluminescent, but only at night. During the day, they carry out photosynthesis similar to other autotrophs. At night, however, they bioluminesce every time they are disturbed. They are often seen in the wakes of ships at night. While the reason for this bioluminescence is not fully understood, many scientists concur that it is a form of self-defense. If small fish begin to feed upon the protists, the protists will begin to bioluminesce. These flashes of light in the dark water can alert larger fish and draw them towards the small fish, upon which they prey. By making the small fish vulnerable, the dinoflagellates are able to protect themselves. Based on the information above, a researcher decides to design an experiment in which she is testing how long it takes for dinoflagellates to recover after different amounts of disturbance. She maintains 10 containers of dinoflagellates with similar temperature, salinity and…arrow_forward
- Dinoflagellates are unicellular, marine protists. Dinoflagellates are bioluminescent, but only at night. During the day, they carry out photosynthesis similar to other autotrophs. At night, however, they bioluminesce every time they are disturbed. They are often seen in the wakes of ships at night. While the reason for this bioluminescence is not fully understood, many scientists concur that it is a form of self-defense. If small fish begin to feed upon the protists, the protists will begin to bioluminesce. These flashes of light in the dark water can alert larger fish and draw them towards the small fish, upon which they prey. By making the small fish vulnerable, the dinoflagellates are able to protect themselves. Based on the information above, a researcher decides to design an experiment in which she is testing how long it takes for dinoflagellates to recover after different amounts of disturbance. She maintains 10 containers of dinoflagellates with similar temperature, salinity and…arrow_forwardDistinguish among the following groups: Euglenozoa, Apicomplexa, Ciliophora, Dinoflagellata.arrow_forwardGive one significant difference between Protista and Fungi.arrow_forward
- Euglena are not the only organisms that have flagellum. Zooflagellates are protozoa that also have flagella. Although euglena and zooflagellates move by flagella, why are these organisms classified differently? Use proper terminology.arrow_forwardGive arguments to support the hypothesis that fungi are opisthokonts,more closely related to animals than to plants.arrow_forwardThe paraphyletic phylum Choanozoa contains chytrid zoospores and human sperm, among many other creatures. What are some important aspects of the group, in terms of its evolutionary significance?arrow_forward
- Choose all of the following that exhibit an alternation of multicellular generations. a. Dinoflagellates b. Brown algae c. Red algae d. Diatomsarrow_forwardWhich order does rhizoid belong to?arrow_forwardWhat material makes up a large proportion of a diatom’s cell wall? What material makes up a large proportion of a diatom’s cell wall? What are flagella? What purpose do flagella serve? What do euglenoids have instead of a cell wall? What characteristics do plantlike protists share with plants? How do euglenoids obtain food when there isn’t enough light to perform photosynthesis? How do dinoflagellates compare and contrast with euglenoids? How do algae get food to live?arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning